The PBS Newshour has an article on a newly discovered bacteria that digests PET! There is a lot to learn, but maybe we have a tool to not just degrade but digest the most common plastic. Maybe even the microplastic floating in the ocean.

Scanning electron microscopy image of the degraded surface of a piece of PET after 60 hours with Ideonella sakaiensis. The inset shows the original smooth surface of the PET plastic. Scale bar, 1 μm. Photo courtesy of Yoshida et al., Science, (2016).

Don't worry- it won't eat all the rubber seals in our underground facility: